D21F 7/086
Substantially impermeable for transferring fibrous webs
Official title: {Substantially impermeable for transferring fibrous webs}
D21F7/086 (Substantially impermeable for transferring fibrous webs) appears on 80 US grants and 101 published applications in this corpus.
Search patents in D21F- Granted patents
- 80
- Published applications
- 101
- Assignees
- 27
- Inventors
- 151
- Latest grant
- 19 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 2 |
| 2005 | 2 | 6 |
| 2006 | 0 | 2 |
| 2007 | 1 | 16 |
| 2008 | 2 | 6 |
| 2009 | 1 | 3 |
| 2010 | 8 | 18 |
| 2011 | 7 | 3 |
| 2012 | 9 | 7 |
| 2013 | 6 | 7 |
| 2014 | 7 | 4 |
| 2015 | 2 | 5 |
| 2016 | 4 | 5 |
| 2017 | 4 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 3 |
| 2020 | 4 | 4 |
| 2021 | 2 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 4 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Transfer belt in a press nip closed draw transfer90US 5,298,124 AAlbany International Corp. · 1994
- Papermaking machine employing an impermeable transfer belt, and associated methods90US 7,811,418 B2Metso Paper Karlstad AB · 2010
- Conveyor felt for paper making and a method of manufacturing such a felt44US 4,500,588 ATamfelt Oy Ab · 1985
- Wet-pressing belt for paper machines36US 4,564,551 AThomas Josef Heimbach GmbH & Co. · 1986
- Papermachine belt30US 6,712,940 B2Voith Fabrics Heidenheim GmbH & Co. KG · 2004